cheetah-framework/js/framework/utils/MenuBuilder.js

Cheetah Framework JS used in all our applications

let uid = 0

class MenuElement {
  constructor (label, options) {
    this.uid = uid++
    this.cache = {}
    this.label = label
    this.options = { icon: null, ...(options || {}) }
  }

  get canShow () {
    if (this.options.permissions?.length && !cheetahApp.user?.can(...this.options.permissions)) {
      return false
    }

    if (this.options.roles?.length && !cheetahApp.user?.is(...this.options.roles)) {
      return false
    }

    return true
  }
}

class MenuGroup extends MenuElement {
  /**
   * @param {string} label
   * @param {object|MenuItem[]|MenuGroup[]} options
   * @param {null|MenuItem[]|MenuGroup[]} items
   */
  constructor (label, options, items = null) {
    if (arguments.length === 2) {
      [options, items] = [items, options]
    }

    super(label, options)
    this.items = items
  }

  get canShow () {
    return super.canShow && !!this.items?.filter(item => item.canShow).length
  }

  /**
   * Recursively get child menu items
   *
   * @returns {MenuItem[]}
   */
  getDescendants () {
    if (!_.has(this.cache, 'descendants')) {
      this.cache.descendants = _.reduce(
        this.items,
        (childMenuItems, menuItem) => {
          return _.concat(
            childMenuItems,
            menuItem instanceof MenuGroup
              ? menuItem.getDescendants()
              : [menuItem]
          )
        },
        []
      )
    }

    return this.cache.descendants
  }
}

class MenuItem extends MenuElement {
  /**
   * @param {string} label
   * @param {object} route
   * @param {object} options
   */
  constructor (label, route, options = {}) {
    super(label, { exact: false, ...options })
    this.route = route
  }

  /**
   * Resolve item route
   *
   * @returns {object}
   */
  getRoute () {
    if (!_.has(this.cache, 'resolvedRoute')) {
      this.cache.resolvedRoute = cheetahApp.$router.resolve(this.route).route
    }

    return this.cache.resolvedRoute
  }
}

export { MenuGroup, MenuItem }